#AD3337#AD3337

#AD3337 is a mid, vivid red. Relative luminance 0.115; OKLCH L 50.6% C 0.158 H 23.1°. Best body text is #FFFFFF at 6.35:1 contrast (WCAG AA passes).

Color values

HEX	#AD3337
RGB	rgb(173, 51, 55)
HSL	hsl(358, 54%, 44%)
HSV	hsv(358, 71%, 68%)
CMYK	cmyk(0%, 70.5%, 68.2%, 32.2%)
CIE-LAB	lab(40.46, 49.55, 26.53)
CIE-LCH	lch(40.46, 56.21, 28.17°)
OKLab	oklab(50.59% 0.1454 0.0621)
OKLCH	oklch(50.59% 0.158 23.1)
XYZ	xyz(19.1090, 11.5305, 4.8331)
Luminance	0.1153 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AD3337 #33ADA9

analogous

#AD3374 #AD3337 #AD6C33

triadic

#AD3337 #37AD33 #3337AD

tetradic

#AD3337 #74AD33 #33ADA9 #6C33AD

square

#AD3337 #74AD33 #33ADA9 #6C33AD

split-complementary

#AD3337 #33AD6C #3374AD

monochromatic

#4E1719 #7E2528 #AD3337 #CC5155 #DA8184

Accessibility & contrast

On white

6.35

#AD3337 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.31

#AD3337 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AD3337

6.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AD3337	#FFFFFF	#000000	##FFFFFF
##AD3337	1.00	6.35	3.31	6.35
#FFFFFF	6.35	1.00	21.00	1.00
#000000	3.31	21.00	1.00	21.00
##FFFFFF	6.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#554F36

Deuteranopia (green-blind)

#746933

Tritanopia (blue-blind)

#BE0C36

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #ad3337;
/* rgb */ color: rgb(173, 51, 55);
/* oklch */ color: oklch(50.6% 0.158 23.1);

Tailwind

colors: {
  custom: {
    50: '#cd736e',
    500: '#ad3337',
    950: '#000000',
  },
}

SCSS

$custom: #ad3337;
$custom-light: #cd736e;
$custom-dark: #000000;

JSON

{
  "hex": "#ad3337",
  "rgb": {
    "r": 173,
    "g": 51,
    "b": 55
  },
  "hsl": {
    "h": 358.033,
    "s": 54.464,
    "l": 43.922
  },
  "oklch": {
    "l": 0.50587,
    "c": 0.15807,
    "h": 23.1
  },
  "luminance": 0.11528
}

Semantic roles & 50–950 ramp

primary

#AD3337

secondary

#79C3C0

accent

#DED94A

background

#FDF7F6

surface

#FBEDEB

border

#D4C8C6

text

#150907

muted

#837B7A

Preview Lab

Preview with #AD3337

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →